HESI CAT EXAM VERSIONS A, B and C 2026/2027| with
Rationales - 100 Questions and Answers Already Graded A+
Premium Exam Tested And Verified
Subject Area Nursing (HESI CAT Exam)
Description This exam covers advanced nursing concepts including pharmacology,
pathophysiology, leadership, evidence-based practice, and patient safety. It aligns
with the latest NCLEX-RN test plan and reflects current clinical guidelines.
Expected Grade A+
Total Questions 100
Duration 3 hours
Learning Outcomes 1. Analyze complex patient scenarios to prioritize nursing interventions.
2. Evaluate pharmacokinetics and pharmacodynamics in special populations.
3. Synthesize evidence-based practice for safe, quality care.
Accreditation Accredited by the Commission on Collegiate Nursing Education (CCNE) and
meets US university standards for graduate-level nursing education.
Page 1
,1. A patient with chronic kidney disease (stage 4) is prescribed enoxaparin for DVT
prophylaxis. Which of the following is the most important consideration for the
nurse regarding this medication?
A. Monitor for signs of bleeding due to reduced renal clearance of enoxaparin.
B. Administer the medication intramuscularly to ensure absorption.
C. Hold the dose if the platelet count is below 100,000/mm³.
D. Use a heparin infusion instead to avoid renal accumulation.
Answer: A. Monitor for signs of bleeding due to reduced renal clearance of
enoxaparin.
Enoxaparin is primarily cleared renally; in stage 4 CKD, accumulation increases
bleeding risk. Option A is correct. Option B is wrong because enoxaparin is given
subcutaneously. Option C is a general precaution but not the most important here.
Option D is not automatically indicated; enoxaparin can be used with dose adjustment.
2. A nurse is evaluating a research study that used a convenience sample and found a
statistically significant difference (p < 0.05) between two groups. Which of the
following is the most critical limitation of this study?
A. The p-value may be inflated due to multiple comparisons.
B. The results cannot be generalized to the target population.
C. The sample size was likely too small to detect a true effect.
D. The study design was not double-blinded.
Answer: B. The results cannot be generalized to the target population.
Convenience sampling limits external validity; results may not represent the broader
population. Option A is plausible but not specific to convenience sampling. Option C
contradicts the significant result. Option D is a limitation but not the most critical given
the sampling issue.
Page 2
,3. A patient with heart failure with reduced ejection fraction (HFrEF) is on
lisinopril, metoprolol, and furosemide. Which laboratory value requires immediate
intervention?
A. Serum potassium 5.2 mEq/L
B. Serum creatinine 1.8 mg/dL (baseline 1.2)
C. BNP 450 pg/mL
D. Hemoglobin 10.5 g/dL
Answer: B. Serum creatinine 1.8 mg/dL (baseline 1.2)
An acute rise in creatinine (50% above baseline) indicates possible acute kidney injury,
which may be exacerbated by lisinopril and furosemide. Option A is mildly elevated but
not critical; option C is expected in HF; option D is chronic anemia, not immediately
life-threatening.
4. During a code blue, the nurse administers epinephrine 1 mg IV push. Which of the
following best describes the primary mechanism of action of this medication in
cardiac arrest?
A. Beta-2 receptor agonism causing bronchodilation and increased oxygenation.
B. Alpha-1 receptor agonism causing peripheral vasoconstriction and increased coronary
perfusion pressure.
C. Beta-1 receptor agonism causing increased heart rate and contractility.
D. Dopaminergic receptor agonism causing renal vasodilation.
Answer: B. Alpha-1 receptor agonism causing peripheral vasoconstriction and
increased coronary perfusion pressure.
In cardiac arrest, epinephrine's alpha-1 effects increase systemic vascular resistance,
redirecting blood to the heart and brain. Option C is secondary; option A is not
primary; option D is incorrect.
Page 3
, 5. A nurse is caring for a patient with a chest tube connected to a water-seal drainage
system. The nurse notes continuous bubbling in the water-seal chamber. Which of
the following is the most likely cause?
A. Air leak in the system
B. Normal operation of the suction
C. Tension pneumothorax
D. Clogged chest tube
Answer: A. Air leak in the system
Continuous bubbling indicates an air leak, either from the patient or the system. Option
B is wrong because suction causes gentle, not continuous, bubbling. Option C presents
with respiratory distress, not just bubbling. Option D would cause no bubbling or
intermittent.
6. Which of the following is the most appropriate nursing action when a patient
receiving a blood transfusion develops urticaria and pruritus without respiratory
distress?
A. Stop the transfusion immediately and administer diphenhydramine.
B. Slow the transfusion and administer diphenhydramine.
C. Stop the transfusion and prepare for epinephrine administration.
D. Continue the transfusion and monitor for worsening symptoms.
Answer: B. Slow the transfusion and administer diphenhydramine.
Urticaria without respiratory compromise indicates a mild allergic reaction. Slowing
the transfusion and giving antihistamine is appropriate. Option A is too aggressive;
option C is for anaphylaxis; option D neglects treatment.
7. A nurse is assessing a patient with suspected meningitis. Which of the following
findings is most indicative of meningeal irritation?
A. Positive Brudzinski sign
B. Positive Kernig sign
C. Photophobia
D. Nuchal rigidity
Answer: A. Positive Brudzinski sign
Brudzinski sign (neck flexion causes hip/knee flexion) is a specific indicator of
meningeal irritation. Kernig sign is also indicative, but Brudzinski is more commonly
tested. Nuchal rigidity and photophobia are common but less specific.
Page 4
Rationales - 100 Questions and Answers Already Graded A+
Premium Exam Tested And Verified
Subject Area Nursing (HESI CAT Exam)
Description This exam covers advanced nursing concepts including pharmacology,
pathophysiology, leadership, evidence-based practice, and patient safety. It aligns
with the latest NCLEX-RN test plan and reflects current clinical guidelines.
Expected Grade A+
Total Questions 100
Duration 3 hours
Learning Outcomes 1. Analyze complex patient scenarios to prioritize nursing interventions.
2. Evaluate pharmacokinetics and pharmacodynamics in special populations.
3. Synthesize evidence-based practice for safe, quality care.
Accreditation Accredited by the Commission on Collegiate Nursing Education (CCNE) and
meets US university standards for graduate-level nursing education.
Page 1
,1. A patient with chronic kidney disease (stage 4) is prescribed enoxaparin for DVT
prophylaxis. Which of the following is the most important consideration for the
nurse regarding this medication?
A. Monitor for signs of bleeding due to reduced renal clearance of enoxaparin.
B. Administer the medication intramuscularly to ensure absorption.
C. Hold the dose if the platelet count is below 100,000/mm³.
D. Use a heparin infusion instead to avoid renal accumulation.
Answer: A. Monitor for signs of bleeding due to reduced renal clearance of
enoxaparin.
Enoxaparin is primarily cleared renally; in stage 4 CKD, accumulation increases
bleeding risk. Option A is correct. Option B is wrong because enoxaparin is given
subcutaneously. Option C is a general precaution but not the most important here.
Option D is not automatically indicated; enoxaparin can be used with dose adjustment.
2. A nurse is evaluating a research study that used a convenience sample and found a
statistically significant difference (p < 0.05) between two groups. Which of the
following is the most critical limitation of this study?
A. The p-value may be inflated due to multiple comparisons.
B. The results cannot be generalized to the target population.
C. The sample size was likely too small to detect a true effect.
D. The study design was not double-blinded.
Answer: B. The results cannot be generalized to the target population.
Convenience sampling limits external validity; results may not represent the broader
population. Option A is plausible but not specific to convenience sampling. Option C
contradicts the significant result. Option D is a limitation but not the most critical given
the sampling issue.
Page 2
,3. A patient with heart failure with reduced ejection fraction (HFrEF) is on
lisinopril, metoprolol, and furosemide. Which laboratory value requires immediate
intervention?
A. Serum potassium 5.2 mEq/L
B. Serum creatinine 1.8 mg/dL (baseline 1.2)
C. BNP 450 pg/mL
D. Hemoglobin 10.5 g/dL
Answer: B. Serum creatinine 1.8 mg/dL (baseline 1.2)
An acute rise in creatinine (50% above baseline) indicates possible acute kidney injury,
which may be exacerbated by lisinopril and furosemide. Option A is mildly elevated but
not critical; option C is expected in HF; option D is chronic anemia, not immediately
life-threatening.
4. During a code blue, the nurse administers epinephrine 1 mg IV push. Which of the
following best describes the primary mechanism of action of this medication in
cardiac arrest?
A. Beta-2 receptor agonism causing bronchodilation and increased oxygenation.
B. Alpha-1 receptor agonism causing peripheral vasoconstriction and increased coronary
perfusion pressure.
C. Beta-1 receptor agonism causing increased heart rate and contractility.
D. Dopaminergic receptor agonism causing renal vasodilation.
Answer: B. Alpha-1 receptor agonism causing peripheral vasoconstriction and
increased coronary perfusion pressure.
In cardiac arrest, epinephrine's alpha-1 effects increase systemic vascular resistance,
redirecting blood to the heart and brain. Option C is secondary; option A is not
primary; option D is incorrect.
Page 3
, 5. A nurse is caring for a patient with a chest tube connected to a water-seal drainage
system. The nurse notes continuous bubbling in the water-seal chamber. Which of
the following is the most likely cause?
A. Air leak in the system
B. Normal operation of the suction
C. Tension pneumothorax
D. Clogged chest tube
Answer: A. Air leak in the system
Continuous bubbling indicates an air leak, either from the patient or the system. Option
B is wrong because suction causes gentle, not continuous, bubbling. Option C presents
with respiratory distress, not just bubbling. Option D would cause no bubbling or
intermittent.
6. Which of the following is the most appropriate nursing action when a patient
receiving a blood transfusion develops urticaria and pruritus without respiratory
distress?
A. Stop the transfusion immediately and administer diphenhydramine.
B. Slow the transfusion and administer diphenhydramine.
C. Stop the transfusion and prepare for epinephrine administration.
D. Continue the transfusion and monitor for worsening symptoms.
Answer: B. Slow the transfusion and administer diphenhydramine.
Urticaria without respiratory compromise indicates a mild allergic reaction. Slowing
the transfusion and giving antihistamine is appropriate. Option A is too aggressive;
option C is for anaphylaxis; option D neglects treatment.
7. A nurse is assessing a patient with suspected meningitis. Which of the following
findings is most indicative of meningeal irritation?
A. Positive Brudzinski sign
B. Positive Kernig sign
C. Photophobia
D. Nuchal rigidity
Answer: A. Positive Brudzinski sign
Brudzinski sign (neck flexion causes hip/knee flexion) is a specific indicator of
meningeal irritation. Kernig sign is also indicative, but Brudzinski is more commonly
tested. Nuchal rigidity and photophobia are common but less specific.
Page 4
